<template>
  <div class="login-container">
    <el-form 
      ref="loginForm" 
      :model="loginForm" 
      :rules="loginRules" 
      class="login-form" 
      auto-complete="on" 
      label-position="left">
      <div class="title-container">
        <h3 class="title">
          {{ $t('login.title') }}
        </h3>
        <lang-select class="set-language" />
      </div>

      <el-form-item prop="userName">
        <span class="svg-container">
          <svg-icon icon-class="user" />
        </span>
        <el-input
          v-model="loginForm.userName"
          :placeholder="$t('login.username')"
          name="username"
          type="text"
          auto-complete="on"
        />
      </el-form-item>

      <el-form-item prop="password">
        <span class="svg-container">
          <svg-icon icon-class="password" />
        </span>
        <el-input
          v-model="loginForm.password"
          :type="passwordType"
          :placeholder="$t('login.password')"
          name="password"
          auto-complete="on"
          @keyup.enter.native="handleLogin"
        />
        <span 
          class="show-pwd" 
          @click="showPwd">
          <svg-icon :icon-class="passwordType === 'password' ? 'eye' : 'eye-open'" />
        </span>
      </el-form-item>

      <el-button 
        :loading="loading" 
        type="primary" 
        style="width:100%;margin-bottom:30px;" 
        @click.native.prevent="handleLogin">
        {{ $t('login.logIn') }}
      </el-button>

      <div style="position:relative;margin-top: 30px">
        <el-button 
          class="thirdparty-button" 
          type="primary" 
          @click="goRegister">
          register
        </el-button>
      </div>
    </el-form>
  </div>
</template>

<script>
import { isvalidUsername } from '@/utils/validate';
import LangSelect from '@/components/LangSelect';
import SocialSign from './socialsignin';

export default {
    name: 'Login',
    components: { LangSelect, SocialSign },
    data() {
        const validateUsername = (rule, value, callback) => {
            // if (!isvalidUsername(value)) {
            //     callback(new Error('Please enter the correct user name'));
            // } else {
            //     callback();
            // }
            callback();
        };
        const validatePassword = (rule, value, callback) => {
            if (value.length < 6) {
                callback(new Error('The password can not be less than 6 digits'));
            } else {
                callback();
            }
        };
        return {
            loginForm: {
                userName: '',
                password: ''
            },
            loginRules: {
                userName: [{ required: true, trigger: 'blur', validator: validateUsername }],
                password: [{ required: true, trigger: 'blur', validator: validatePassword }]
            },
            passwordType: 'password',
            loading: false,
            showDialog: false,
            redirect: undefined
        };
    },
    watch: {
        $route: {
            handler: function (route) {
                this.redirect = route.query && route.query.redirect;
            },
            immediate: true
        }
    },
    created() {
    // window.addEventListener('hashchange', this.afterQRScan)
    },
    destroyed() {
    // window.removeEventListener('hashchange', this.afterQRScan)
    },
    methods: {
        goRegister() {
            this.$router.push({ path: '/register' });
        },
        showPwd() {
            if (this.passwordType === 'password') {
                this.passwordType = '';
            } else {
                this.passwordType = 'password';
            }
        },
        handleLogin() {
            this.$refs.loginForm.validate(valid => {
                if (valid) {
                    this.loading = true;
                    this.$store.dispatch('LoginByUsername', this.loginForm).then(() => {
                        this.loading = false;
                        this.$message.success('登录成功!');
                        this.$router.push({ path: this.redirect || '/ethereum/index' });
                    }).catch((res) => {
                        this.loading = false;
                        console.log(res, 1111);
                    });
                } else {
                    console.log('error submit!!');
                    return false;
                }
            });
        },
        afterQRScan() {
            // const hash = window.location.hash.slice(1)
            // const hashObj = getQueryObject(hash)
            // const originUrl = window.location.origin
            // history.replaceState({}, '', originUrl)
            // const codeMap = {
            //   wechat: 'code',
            //   tencent: 'code'
            // }
            // const codeName = hashObj[codeMap[this.auth_type]]
            // if (!codeName) {
            //   alert('第三方登录失败')
            // } else {
            //   this.$store.dispatch('LoginByThirdparty', codeName).then(() => {
            //     this.$router.push({ path: '/' })
            //   })
            // }
        }
    }
};
</script>

<style rel="stylesheet/scss" lang="scss">
  /* 修复input 背景不协调 和光标变色 */
  /* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */

  $bg:#283443;
  $light_gray:#eee;
  $cursor: #fff;

  @supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
    .login-container .el-input input{
      color: $cursor;
      &::first-line {
        color: $light_gray;
      }
    }
  }

  /* reset element-ui css */
  .login-container {
    .el-input {
      display: inline-block;
      height: 47px;
      width: 85%;
      input {
        background: transparent;
        border: 0px;
        -webkit-appearance: none;
        border-radius: 0px;
        padding: 12px 5px 12px 15px;
        color: $light_gray;
        height: 47px;
        caret-color: $cursor;
        &:-webkit-autofill {
          -webkit-box-shadow: 0 0 0px 1000px $bg inset !important;
          -webkit-text-fill-color: $cursor !important;
        }
      }
    }
    .el-form-item {
      border: 1px solid rgba(255, 255, 255, 0.1);
      background: rgba(0, 0, 0, 0.1);
      border-radius: 5px;
      color: #454545;
    }
  }
</style>

<style rel="stylesheet/scss" lang="scss" scoped>
$bg:#2d3a4b;
$dark_gray:#889aa4;
$light_gray:#eee;

.login-container {
  min-height: 100%;
  width: 100%;
  background-color: $bg;
  overflow: hidden;
  .login-form {
    position: relative;
    width: 520px;
    max-width: 100%;
    padding: 160px 35px 0;
    margin: 0 auto;
    overflow: hidden;
  }
  .tips {
    font-size: 14px;
    color: #fff;
    margin-bottom: 10px;
    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }
  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
  }
  .title-container {
    position: relative;
    .title {
      font-size: 26px;
      color: $light_gray;
      margin: 0px auto 40px auto;
      text-align: center;
      font-weight: bold;
    }
    .set-language {
      color: #fff;
      position: absolute;
      top: 5px;
      right: 0px;
    }
  }
  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }
  .thirdparty-button {
    position: absolute;
    right: 0;
    bottom: 6px;
  }
}
</style>
